闽江河口湿地自然保护区及其周边区域景观自然性评价

发布时间：2018-05-16 18:33

本文选题：湿地 + 自然保护区　；参考：《生态学报》2017年20期

【摘要】：闽江河口湿地自然保护区是福建省沿海湿地自然保护区网络中的重要组成部分,通过解译2003年和2013年两个时相的遥感影像,利用RS和GIS空间分析技术计算自然景观特征、生态学干扰和景观破碎化程度3项指标,并在此基础上构建2个层次的景观自然性评价指标体系。同时,运用层次分析法计算各个指标层的权重,定量分析了2003—2013年间研究区域的景观自然性的变化,并进一步探讨了不同距离的环状带对湿地保护区及周边区域景观自然性的影响,对闽江河口湿地保护区及其周边区域景观自然性变化进行分析。结果显示:2003—2013年间,闽江河口湿地自然保护区内景观自然性降低,降幅为9.17%,景观自然性有随着距离自然保护区距离增加而减小的趋势。景观自然性变化的自然驱动力为气候、水文、植被演替,人为驱动力为人类开发活动和政策导向。据此,提出3条建议以便更有效地保护自然保护区和周边区域的自然性,为闽江河口湿地自然保护区的科学管理提供参考。
[Abstract]:Minjiang River Estuary Wetland Nature Reserve is an important part of Fujian coastal wetland nature reserve network. By interpreting the remote sensing images of 2003 and 2013, RS and GIS spatial analysis techniques are used to calculate the natural landscape characteristics. Ecological disturbance and landscape fragmentation degree were three indexes, and on this basis, two levels of landscape natural evaluation index system was constructed. At the same time, the weight of each index layer is calculated by AHP, and the change of landscape naturalness in the study area between 2003 and 2013 is analyzed quantitatively. Furthermore, the influence of different distance annular zone on the landscape naturalness of wetland reserve and surrounding area was discussed, and the changes of landscape naturalness in Minjiang River estuary wetland reserve and its surrounding area were analyzed. The results showed that the landscape naturalness of Minjiang River Estuary Wetland Nature Reserve decreased by 9.17% from 2003 to 2013, and the landscape naturalness decreased with the increase of distance from the Nature Reserve to Minjiang River Estuary Wetland Nature Reserve. The natural driving force of landscape natural change is climate, hydrology and vegetation succession. Based on this, three suggestions are put forward in order to protect the nature of nature reserve and surrounding area more effectively, and provide reference for the scientific management of the wetland nature reserve in Minjiang River estuary.
【作者单位】：福州大学环境与资源学院;福州市环境监测中心站;
【基金】：福州大学科技发展基金资助项目(2013-XY-10);福州大学科研启动资助项目(0060510028)
【分类号】：P901;X36

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